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Staging: VME: Fix Universe II int ack logic.

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The driver must acknowledge the interrupts that have been actually serviced, not
the ones active. The current code could acknowledge an interrupt that has not
been serviced at all.

Signed-off-by: Vincent Bossier <vincent.bossier@gmail.com>
Acked-by: Martyn Welch <martyn.welch@ge.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Vincent Bossier 2011-06-02 12:30:02 +02:00 committed by Greg Kroah-Hartman
parent 584721cab2
commit 56fc508186
1 changed files with 1 additions and 1 deletions
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drivers/staging/vme/bridges/vme_ca91cx42.c
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@ -190,7 +190,7 @@ static irqreturn_t ca91cx42_irqhandler(int irq, void *ptr)
serviced |= ca91cx42_VIRQ_irqhandler(ca91cx42_bridge, stat);
/* Clear serviced interrupts */
iowrite32(stat, bridge->base + LINT_STAT);
iowrite32(serviced, bridge->base + LINT_STAT);
return IRQ_HANDLED;
}